TL929-250A Series High-Performance 250A Electric Latching Relay
Model:
TL929-250A
Category: Magnetic Latching Relay, products
- Rated Current: 250A
- Max Switching Voltage: 440VAC
- Contact Form: Single Pole
- Latching Type: Magnetic (Bi-Stable)
- Coil Voltage Options: 6VDC, 9VDC, 12VDC, 24VDC
- Coil Types: Single Coil (L1) or Dual Coil (L2)
- Auxiliary Contact: Optional (A suffix)
- Electrical Life (250VAC): 3,000 cycles at 250A
- Dimensions: 62mm x 52mm x 27mm
Product Introduction

Product Features
- High 250A contact segmentation capability
- Extremely low power consumption through pulse drive operation
- Superior reliability and strong impact resistance
- Advanced magnetic arc extinguishing technology
- Available in both single-coil and dual-coil versions
- High 4kV withstand voltage between contact and coil
- Environmentally friendly design, compliant with RoHS
- Certified to IEC62055-31 UC3 and CE standards
- Compact dimensions: 62mm x 52mm x 27mm
Product Specifications
| Parameter | Specification |
|---|---|
| Model Series | TL929-250 |
| Rated Load | 250A 250VAC |
| Maximum Switching Current | 250A |
| Maximum Switching Voltage | 440VAC |
| Maximum Switching Power | 50,000VA |
| Contact Material | Silver Alloy |
| Contact Resistance | 1mΩ Max. |
| Operate Time (Max.) | 20ms |
| Release Time (Max.) | 20ms |
| Insulation Resistance | 1,000MΩ Min. (DC500V) |
| Dielectric Withstand Voltage (Contact to Contact) | AC2,000V; 50/60Hz 1min |
| Dielectric Withstand Voltage (Contact to Coil) | AC4,000V; 50/60Hz 1min |
| Creepage Distance | 8mm |
| Vibration Resistance | 10~55Hz, double amplitude 1.5mm |
| Shock Resistance (Endurance) | 100G min |
| Shock Resistance (Malfunction) | 10G min |
| Mechanical Life | 300,000 cycles (at 1800 cycles/hour) |
| Electrical Life (250A 250VAC) | 3,000 cycles (at 600 cycles/hour) |
| Electrical Life (250A 60VDC) | 1,000 cycles (at 600 cycles/hour) |
| Electrical Life (220A 250VAC) | 10,000 cycles (at 600 cycles/hour) |
| Ambient Temperature | -40°C ~ +70°C |
| Humidity | 5%~85% RH |
Coil Parameters (Standard Type)
| Rated Voltage (VDC) | Coil Resistance ±10% (Single Coil) | Coil Resistance ±10% (Double Coil) | Operate/Reset Voltage (Max) (VDC) | Pulse Width (ms) | Rated Power (Single Coil) | Rated Power (Double Coil) |
|---|---|---|---|---|---|---|
| 6 | 15Ω | 2×7.5Ω | 70% of Rated Voltage | 50ms | ~2.4W | ~4.8W |
| 9 | 34Ω | 2×17Ω | ~2.4W | ~4.8W | ||
| 12 | 60Ω | 2×30Ω | ~2.4W | ~4.8W | ||
| 24 | 240Ω | 2×120Ω | ~2.4W | ~4.8W |
Key Parameters
- Rated Current: 250A
- Max Switching Voltage: 440VAC
- Contact Form: Single Pole
- Latching Type: Magnetic (Bi-Stable)
- Coil Voltage Options: 6VDC, 9VDC, 12VDC, 24VDC
- Coil Types: Single Coil (L1) or Dual Coil (L2)
- Auxiliary Contact: Optional (A suffix)
- Electrical Life (250VAC): 3,000 cycles at 250A
- Dimensions: 62mm x 52mm x 27mm
Application Areas
The TL929-250A Series 250A Electric Latching Relay is ideally suited for high-current switching applications requiring reliability and low power consumption. Its primary use is in:
- Electric Vehicle (EV) Charging Equipment: Controlling power output in charging stations and piles.
- Power Distribution Units (PDUs): Managing high-current circuits in industrial and commercial power distribution.
- Renewable Energy Systems: Inverters and battery management systems in solar and wind power installations.
- Industrial Automation & Machinery: Controlling heavy motors, heaters, and other high-power industrial loads.
- Energy Management Systems (EMS): For smart grid applications and load shedding.
Contact Info
- Phone: +86-0755-28029319
- Email: lingyuanbin@mingni.cn
- Address: 2nd Floor, Building 1, Jingsheng Industrial Zone, 119 Huafan Road, Dalang Subdistrict, Longhua District, Shenzhen.




